Coke oven flue gas waste heat boiler

Abstract

The utility model relates to the technical field of waste heat boilers, and discloses a coke oven flue gas waste heat boiler which comprises an evaporator, fins are fixedly connected to the inner wall of the evaporator, the evaporator is fixedly connected to the front face of the inner wall of a cover body, and a steel frame platform is fixedly connected to the right side of the cover body. A cleaning device is arranged on the evaporator; the cleaning device comprises a frame, the frame is fixedly connected to the front face of the evaporator, the right side of the frame is rotationally connected with a first rotating rod through a ball bearing, a motor is started to drive a first bevel gear to rotate, the first bevel gear rotates to drive the first rotating rod to rotate, the first rotating rod rotates to drive a rotating disc to rotate, and the rotating disc drives a hinged fixing rod to rotate. The fixed rod drives the movable rod to move, the movable rod drives the cleaning block to clean condensate water on the fins, meanwhile, the sliding block slides on the inner wall of the sliding groove, the moving track of the cleaning block is limited, meanwhile, due to the fact that the brush is installed on the back face of the cleaning block, the condensate water in the fins can be deeply cleaned, and the service life of the evaporator is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat boilers, in particular to a coke oven flue gas waste heat boiler. Background Art

[0002] Waste heat is energy that is not utilized in energy utilization equipment under certain economic and technical conditions, that is, redundant and waste energy. It includes seven types of waste heat from high-temperature exhaust gas, waste heat from cooling medium, waste heat from waste steam and waste water, waste heat from high-temperature products and slag, waste heat from chemical reactions, waste heat from combustible waste gas, waste liquid and waste materials, and waste heat from high-pressure fluids. According to the survey, the total waste heat resources of various industries account for about 17%-67% of their total fuel consumption, and the recyclable waste heat resources account for about 60% of the total waste heat resources. Coke oven flue gas belongs to high-temperature waste heat, and the flue gas temperature is as high as 750-950℃. By setting up a waste heat boiler, the waste heat can be effectively absorbed to generate steam for power generation, and the exhaust temperature is reduced to 160℃, and then dust removal and desulfurization and other environmental protection treatments are carried out. After the waste heat boiler is set up, the economic benefits of the enterprise are improved, and it is also conducive to the green and healthy development of the enterprise. As for the utilization of waste heat, improving the heat transfer capacity of the waste heat boiler, and then making full use of the high-temperature flue gas, a waste heat boiler is needed to achieve it.

[0003] According to the Chinese patent publication number CN217653835U, the technical solution disclosed in the patent document is as follows: The utility model proposes a coke oven flue gas waste heat boiler, characterized in that it includes: a steam drum, a superheater, an evaporator, a convection tube bundle, and an economizer; steam drums are arranged on the upper and lower sides of the convection tube bundle; a superheater and an evaporator are arranged in sequence on the left side of the convection tube bundle, and the superheater is on the left side of the evaporator; an economizer is arranged on the right side of the convection tube bundle; feed water enters the upper steam drum after being heated by the economizer, and becomes saturated steam after being heated by the convection tube bundle and the evaporator. The saturated steam is drawn out from the upper part of the upper steam drum and enters the superheater, and is drawn out as superheated steam after being heated, thereby improving the heat transfer capacity of the waste heat boiler and making full use of the high-temperature flue gas.

[0004] The above patent has the following shortcomings: when the device uses the evaporator, the evaporator fins will continuously produce condensed water, which hinders the air flow, resulting in poor evaporation effect, and only improves the evaporator of the reference document. In view of this, we propose a coke oven flue gas waste heat boiler. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a coke oven flue gas waste heat boiler.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a coke oven flue gas waste heat boiler, comprising an evaporator, the inner wall of the evaporator is fixedly connected with fins, the evaporator is fixedly connected to the front of the inner wall of the cover, and the right side of the cover is fixedly connected with a steel frame platform; a cleaning device is arranged on the evaporator; the cleaning device comprises a frame, the frame is fixedly connected to the front of the evaporator, and the right side of the frame is rotatably connected with a rotating rod 1 through a ball bearing, which is a ball bearing and can bear radial and axial loads and composite loads at the same time. The ball bearing 22 cooperates with the shaft in an interference fit or clearance fit manner, which is more convenient to install, and the force direction is relatively stable, so the installation error has little effect on it, and the rotating rod 1 movably penetrates the frame and extends to the left side, the left side of the rotating rod 1 is fixedly connected with a bevel gear 1, the right side of the rotating rod 1 is fixedly connected with a turntable, the right side of the turntable is hinged with a fixed rod through a hinged rod, the right side of the fixed rod is hinged with a movable rod, the bottom of the movable rod is hinged with a cleaning block, the left side of the cleaning block is fixedly connected with a slider, and a slide groove is provided on the left side of the frame.

[0009] Preferably, a support plate is fixedly connected to the left side of the frame, a motor is fixedly connected to the top of the support plate, and the right side of the motor output end is fixedly connected to the left side of bevel gear one.

[0010] Preferably, the sliding block is slidably connected to the inner wall of the sliding groove.

[0011] Preferably, a knocking device is provided on the evaporator, and the knocking device includes a fixed block, and the fixed block is fixedly connected to the left side of the evaporator. The back of the fixed block is rotatably connected to a second rotating rod through a roller, and the second rotating rod movably passes through the fixed block and extends to the front, and the front of the second rotating rod is fixedly connected to a second bevel gear.

[0012] Preferably, a cross block is fixedly connected to the back side of the second rotating rod.

[0013] Preferably, the bevel gear one and the bevel gear two are meshed with each other.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a coke oven flue gas waste heat boiler, which has the following beneficial effects:

[0016] 1. This coke oven flue gas waste heat boiler starts the motor, the motor drives the bevel gear to rotate, the bevel gear rotates and drives the rotating rod to rotate, the rotating rod rotates and drives the turntable to rotate, the turntable drives the hinged fixed rod to rotate, the fixed rod drives the movable rod to move, the movable rod drives the cleaning block to clean the condensed water on the fin, and at the same time, the slider slides on the inner wall of the slide groove to limit the movement trajectory of the cleaning block. At the same time, because a brush is installed on the back of the cleaning block, the condensed water inside the fin can be deeply cleaned, so as to improve the service life of the evaporator.

[0017] 2. This coke oven flue gas waste heat boiler drives bevel gear 2 through bevel gear 1, bevel gear 2 drives rotating rod 2 to rotate, rotating rod 2 drives the cross block to knock the evaporator, so that the places not cleaned by the cleaning block are shaken off, condensed water, evaporator, and flue gas are baffled three times to increase the flue gas flow rate and form horizontal scouring, and then enter the cover body, fully absorb heat and then be discharged outside the steel frame platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a front sectional structural schematic diagram of the utility model;

[0021] Figure 3 This is a schematic diagram of the overall structure of the evaporator of the utility model;

[0022] Figure 4 This is a schematic diagram of the left side cross-sectional structure of the evaporator of the utility model;

[0023] Figure 5 This is a front cross-sectional structural diagram of the evaporator of the utility model;

[0024] Figure 6 This is a schematic diagram of the back structure of the evaporator of the utility model;

[0025] Figure 7 For this utility model Figure 3 A is an enlarged structural diagram;

[0026] Figure 8 For this utility model Figure 5 A schematic diagram of the enlarged structure at B;

[0027] Fig. 9 For this utility model Figure 6 Enlarged structural diagram at point C.

[0028] In the figure: 1. evaporator; 2. cleaning device; 21. frame; 22. ball bearing; 23. rotating rod 1; 24. turntable; 25. fixed rod; 26. hinged rod; 27. movable rod; 28. slide groove; 29. ​​slider; 210. cleaning block; 211. support plate; 212. motor; 213. bevel gear 1; 3. knocking device; 31. fixed block; 32. rotating rod 2; 33. bevel gear 2; 34. roller bearing; 35. cross block; 4. fin; 5. cover body; 6. steel frame platform. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0030] Example 1

[0031] like Figure 1-9 As shown, the utility model provides a coke oven flue gas waste heat boiler, including an evaporator 1, the inner wall of the evaporator 1 is fixedly connected with a fin 4, the evaporator 1 is fixedly connected to the front of the inner wall of a cover body 5, and the right side of the cover body 5 is fixedly connected with a steel frame platform 6; a cleaning device 2 is arranged on the evaporator 1; the cleaning device 2 includes a frame 21, the frame 21 is fixedly connected to the front of the evaporator 1, the right side of the frame 21 is rotatably connected with a rotating rod 23 through a ball bearing 22, and the rotating rod 23 movably penetrates the frame 21 and extends to the left side, the left side of the rotating rod 23 is fixedly connected with a bevel gear 213, the right side of the rotating rod 23 is fixedly connected with a turntable 24, the right side of the turntable 24 is hinged with a fixed rod 25 through a hinge rod 26, the right side of the fixed rod 25 is hinged with a movable rod 27, the bottom of the movable rod 27 is hinged with a cleaning block 210, the left side of the cleaning block 210 is fixedly connected with a slider 29, and the left side of the frame 21 is provided with a slide groove 28.

[0032] A support plate 211 is fixedly connected to the left side of the frame 21 , a motor 212 is fixedly connected to the top of the support plate 211 , and the right side of the output end of the motor 212 is fixedly connected to the left side of the bevel gear 1 213 .

[0033] The slider 29 is slidably connected to the inner wall of the slide groove 28 .

[0034] In this embodiment, by starting the motor 212, the motor 212 drives the bevel gear 213 to rotate, the rotation of the bevel gear 213 drives the rotating rod 23 to rotate, the rotation of the rotating rod 23 drives the rotating disk 24 to rotate, the rotating disk 24 drives the hinged fixed rod 25 to rotate, the fixed rod 25 drives the movable rod 27 to move, the movable rod 27 drives the cleaning block 210 to clean the condensed water on the fin 4, and at the same time, the slider 29 slides on the inner wall of the slide groove 28 to limit the moving trajectory of the cleaning block 210. At the same time, since a brush is installed on the back of the cleaning block 210, the condensed water inside the fin 4 can be deeply cleaned, thereby improving the service life of the evaporator 1.

[0035] Example 2

[0036] like Figure 1-9As shown, on the basis of Example 1, the utility model provides a technical solution: a knocking device 3 is provided on the evaporator 1, and the knocking device 3 includes a fixed block 31, and the fixed block 31 is fixedly connected to the left side of the evaporator 1. The back of the fixed block 31 is rotatably connected to a rotating rod 2 32 through a roller bearing 34, and the rotating rod 2 32 movably passes through the fixed block 31 and extends to the front, and the front of the rotating rod 2 32 is fixedly connected to a bevel gear 2 33.

[0037] A cross block 35 is fixedly connected to the back of the second rotating rod 32 .

[0038] Bevel gear 1 213 and bevel gear 2 33 mesh with each other.

[0039] In this embodiment, bevel gear 1 213 drives bevel gear 2 33, bevel gear 2 33 drives rotating rod 2 32 to rotate, rotating rod 2 32 drives cross block 35 to knock evaporator 1, so that the places not cleaned by cleaning block 210 are shaken off, condensed water is shaken off, evaporator 1, and flue gas is baffled three times to increase the flue gas flow rate and form horizontal flushing, and then enters the cover body 5, fully absorbs heat and is discharged outside the steel frame platform 6.

[0040] The working principle of this coke oven flue gas waste heat boiler is described in detail below.

[0041] like Figure 1-9 As shown, when in use, the motor 212 is started, the motor 212 drives the bevel gear 213 to rotate, the rotation of the bevel gear 213 drives the rotating rod 23 to rotate, the rotation of the rotating rod 23 drives the rotating disk 24 to rotate, the rotating disk 24 drives the hinged fixed rod 25 to rotate, the fixed rod 25 drives the movable rod 27 to move, the movable rod 27 drives the cleaning block 210 to clean the condensed water on the fin 4, and at the same time, the slider 29 slides on the inner wall of the slide groove 28 to limit the moving track of the cleaning block 210. At the same time, due to the cleaning block A brush is installed on the back of 210 to deeply clean the condensed water inside the fin 4, so as to improve the service life of the evaporator 1. The bevel gear 1 213 drives the bevel gear 2 33, the bevel gear 2 33 drives the rotating rod 2 32 to rotate, and the rotating rod 2 32 drives the cross block 35 to knock the evaporator 1, so that the places not cleaned by the cleaning block 210 are shaken off, and the condensed water is shaken off the evaporator 1. The flue gas passes through the three baffles to increase the flue gas flow rate and form a horizontal flushing, and then enters the cover body 5, and is discharged outside the steel frame platform 6 after fully absorbing the heat.

Claims

1. A coke oven flue gas waste heat boiler, comprising an evaporator (1), characterized in that: The inner wall of the evaporator (1) is fixedly connected with fins (4), the evaporator (1) is fixedly connected to the front of the inner wall of the cover body (5), and the right side of the cover body (5) is fixedly connected with a steel frame platform (6); The evaporator (1) is provided with a cleaning device (2); The cleaning device (2) comprises a frame (21), the frame (21) being fixedly connected to the front face of the evaporator (1), the right side of the frame (21) being rotatably connected to a rotating rod (23) via a ball bearing (22), the rotating rod (23) movably passing through the frame (21) and extending to the left side, the left side of the rotating rod (23) being fixedly connected to a bevel gear (213), the right side of the rotating rod (23) being fixedly connected to a rotating disk (24), the right side of the rotating disk (24) being hinged to a fixed rod (25) via a hinge rod (26), the right side of the fixed rod (25) being hinged to a movable rod (27), the bottom of the movable rod (27) being hinged to a cleaning block (210), the left side of the cleaning block (210) being fixedly connected to a sliding block (29), and the left side of the frame (21) being provided with a sliding groove (28).

2. A coke oven flue gas waste heat boiler according to claim 1, characterized in that: A support plate (211) is fixedly connected to the left side of the frame (21), a motor (212) is fixedly connected to the top of the support plate (211), and the right side of the output end of the motor (212) is fixedly connected to the left side of bevel gear one (213).

3. A coke oven flue gas waste heat boiler according to claim 1, characterized in that: The sliding block (29) is slidably connected to the inner wall of the sliding groove (28).

4. A coke oven flue gas waste heat boiler according to claim 1, characterized in that: The evaporator (1) is provided with a knocking device (3), the knocking device (3) comprising a fixed block (31), the fixed block (31) being fixedly connected to the left side of the evaporator (1), the back side of the fixed block (31) being rotatably connected to a second rotating rod (32) via a roller bearing (34), the second rotating rod (32) movably passing through the fixed block (31) and extending toward the front side, the front side of the second rotating rod (32) being fixedly connected to a second bevel gear (33).

5. A coke oven flue gas waste heat boiler according to claim 4, characterized in that: A cross block (35) is fixedly connected to the back of the second rotating rod (32).

6. The coke oven flue gas waste heat boiler according to claim 1, characterized in that: The bevel gear one (213) and the bevel gear two (33) are meshed with each other.

Images